Maximize your concurrent web server connections

Image Credit: Bill Jelen For production web servers, most people assume scaling means needing faster (and more expensive) hardware. Before spending more money on servers, first make sure your web serv…

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Latency of DigitalOcean Spaces vs AWS S3

WakaTime’s infra is split across DigitalOcean and AWS. We use DigitalOcean Droplets for compute resources, AWS S3 to store code stats, and DigitalOcean Spaces for backups. You can find more info on th…

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Using a disk-based Redis clone to reduce AWS S3 bill

Redis is an in-memory database with very high write and read speed, and a limitation that data sets can’t be larger than available RAM. It’s like memcached but supports data structures instead of just…

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How To Scale SSL with HAProxy and Nginx

SSL is CPU Intensive. If you haven't already enabled SSL session caching, do that NOW. But what if you have many unique requests and your load balancer is maxing out it's CPU? That was the case with W…

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